Information disclosure in HPE Superdome Flex Servers Using Certain Intel Processors

1) Information disclosure

EUVDB-ID: #VU64366

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-21166

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows an attacker to gain access to potentially sensitive information.

The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Superdome Flex Server: before 3.55.8

CPE2.3

• cpe:2.3:h:hpe:superdome_flex_server:*:*:*:*:*:*:*:*

External links

https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=hpesbhf04326en_us

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.